Find and Install Current Blender Release
You Can keep the current version but it's quite useless.

There are three current builds:


the main: 2.78c that you can download from the official website under download. 



  https://www.blender.org/download/ù


The last two are for advanced users they are unstable, so do not save any important file with this versions:


2.79 testbuilds (2.78.5), downloadable from here:



  http://graphicall.org/110 



2.8 Testbuilds (2.8), downloadable from here:



  https://builder.blender.org/download/ under the red rectangle (2.8 project)